CN216360432U - Garbage pyrolysis treatment sewage purification device - Google Patents
Garbage pyrolysis treatment sewage purification device Download PDFInfo
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- CN216360432U CN216360432U CN202122678556.4U CN202122678556U CN216360432U CN 216360432 U CN216360432 U CN 216360432U CN 202122678556 U CN202122678556 U CN 202122678556U CN 216360432 U CN216360432 U CN 216360432U
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Abstract
A waste pyrolysis treatment sewage purification device comprises: the device comprises a garbage pyrolysis furnace, a flue gas purification system, a sieving water tank, a purification water tank and a precipitation water tank; the water tank comprises a vertical partition plate, a through groove is formed in the vertical partition plate, the vertical partition plate is arranged inside the water tank and divides an inner cavity of the water tank into two cavities, and a vertical filter screen and a sieving assembly are respectively arranged inside the two cavities; the purifying water tank comprises a tank body, a tank cover is arranged at the top of the tank body, and a stirring and collecting assembly is arranged in the tank body; through setting up the water tank that sieves, purified water tank, sediment water tank, utilize vertical filter screen, the subassembly that sieves filters sewage, the stirring is collected the subassembly and is mixed sewage and reaction medicament, deposit natural sedimentation and the sieving of vertical screen cloth in the sediment water tank, can remove floater, precipitate in the sewage, improve device's purification efficiency, simultaneously, the leading-in water tank that sieves of sewage that will have the precipitate through circulating pipe, realize the zero release of sewage.
Description
Technical Field
The utility model relates to the technical field of waste treatment equipment, in particular to a garbage pyrolysis treatment sewage purification device.
Background
Pyrolysis and incineration methods are two very important methods for treating solid waste, in the technical field of household garbage pyrolysis, household garbage is pyrolyzed to form waste residues, and smoke generated after pyrolysis of the garbage needs to be purified and then discharged; in the process of flue gas purification, water is needed for auxiliary purification, and after purification, the used sewage needs to be purified.
SUMMERY OF THE UTILITY MODEL
The utility model provides a garbage pyrolysis treatment sewage purification device, which has the following specific technical scheme:
a waste pyrolysis treatment sewage purification device comprises: the system comprises a garbage pyrolysis furnace 1, a flue gas purification system 2, a sieving water tank 5, a purification water tank 7 and a precipitation water tank 9; the top of the garbage pyrolysis furnace 1 is provided with a flue gas collecting device, and the flue gas collecting device is connected with a flue gas purification system 2; the bottom of the flue gas purification system 2 is provided with a sewage collecting branch pipe 3, the sewage collecting branch pipe 3 is connected with a sewage collecting pipe 4, and the sewage collecting pipe 4 is connected with a sieving water tank 5; be equipped with the first communicating pipe 6 of intercommunication purified water tank 7 on the water tank 5 that sieves, be equipped with the water pump on the first communicating pipe 6, be equipped with the second communicating pipe 8 of connecting precipitation tank 9 on the purified water tank 7, be equipped with the water pump on the second communicating pipe 8, be equipped with the third communicating pipe 10 of connecting flue gas purification system 2 on the precipitation tank 9 and with the circulating water pipe 101 of water tank 5 intercommunication that sieves, all be equipped with the water pump on third communicating pipe 10, the circulating water pipe 101.
On the basis of the scheme, the sieving water tank 5 comprises a vertical partition plate 52, the vertical partition plate 52 is arranged inside the sieving water tank 5, the vertical partition plate 52 divides the inner cavity of the sieving water tank 5 into a left cavity and a right cavity, and the two cavities are communicated through a through groove formed in the bottom of the vertical partition plate 52; in the two cavities, the cavity close to the left is communicated with a sewage collecting pipe 4, a vertical filter screen 53 is arranged in the cavity, the cavity close to the right is communicated with a first communicating pipe 6, and a sieving assembly 55 is arranged in the cavity; the first communicating pipe 6 and the sewage collecting pipe 4 are arranged at the upper part of the sieving water tank 5, the first communicating pipe 6 is arranged above the sieving assembly 55, and the through groove is arranged below the sieving assembly 55; vertical filter screen 53 connects the inner wall of water tank 5 that sieves, subassembly 55 that sieves connects vertical baffle 52, water tank 5 that sieves.
On the basis of the scheme, the sieving water tank 5 is provided with the exhaust component 54, the exhaust component 54 comprises an exhaust pipe 541, the exhaust pipe 541 is communicated with the sieving water tank 5, and the exhaust pipe 541 is internally provided with a fan 542 and an activated carbon net 543.
On the basis of the scheme, the sieving assembly 55 comprises an isolation net 551, and the isolation net 551 is connected with the side wall of the vertical partition plate 52 and the inner wall of the sieving water tank 5; a fine stone filtering layer 552 is arranged above the isolation net 551, a sand filtering layer 553 is arranged above the fine stone filtering layer 552, a fine sand filtering layer 554 is arranged above the sand filtering layer 553, and a binding net 555 is arranged above the fine sand filtering layer 554.
On the basis of the scheme, the purified water tank 7 comprises a tank body 71, a tank cover 72 is arranged at the top of the tank body 71, a stirring and collecting assembly 73 is arranged in the tank body 71, a reaction liquid inlet pipe and a screw 74 are arranged on the tank cover 72, a water quality detection rod 75 and a knob 76 are connected to the screw 74, the water quality detection rod 75 is arranged in the purified water tank 7, and the knob 76 is arranged on the outer side of the purified water tank 7; the screw 74 is threadedly coupled to the cover 72.
On the basis of the scheme, the stirring and collecting assembly 73 comprises a collecting net frame 731 and a collecting frame cover 732, wherein the collecting frame cover 732 is arranged at the bottom of the collecting net frame 731; the collecting screen frame 731 comprises a rotating shaft 7311, the rotating shaft 7311 is driven by a driving member, and the driving member is installed on the top of the box cover 72; a plurality of groups of transverse reinforcing rods 7312 are arranged outside the rotating shaft 7311, and one end of each transverse reinforcing rod 7312, which is far away from the rotating shaft 7311, is connected with a vertical reinforcing rod 7313; the vertical reinforcing rods 7313 are connected with two groups of transverse reinforcing rods 7312, an upper layer screen 7314 and a lower layer screen 7315 are arranged between the transverse reinforcing rods 7312, the transverse reinforcing rods 7312 and the vertical reinforcing rods 7313 are connected to form a collecting chamber 7316, and the collecting chamber 7316 is of a hollow structure.
On the basis of the above scheme, the upper screen 7314 is arranged above the lower screen 7315, and the filtering holes of the upper screen 7314 are larger than the filtering holes of the lower screen 7315; the overlooking section of the collecting net frame 731 is of a cross structure; the bottom end of the rotating shaft 7311 is connected with a connecting rod 7317, the connecting rod 7317 is a roller-shaped structure, and the connecting rod 7317 is provided with an external thread structure; the connecting rod 7317 is sized smaller in radius than the rotating shaft 7311.
On the basis of the above scheme, the collecting frame cover 732 includes a connecting cover body 7321, the connecting cover body 7321 is provided with an internal thread structure, the connecting cover body 7321 is screwed with the connecting rod 7317, and the size of the connecting cover body 7321 is matched with the rotating shaft 7311; a plurality of chamber cover bodies 7322 are disposed outside the connecting cover body 7321, the cross-sectional shape of the chamber cover bodies 7322 is a cross-shaped structure, and the size of the chamber cover bodies 7322 is matched with the collecting chamber 7316.
On the basis of the scheme, the settling water tank 9 comprises two guide blocks 91, the guide blocks 91 are arranged on the bottom end surface inside the settling water tank 9, and the top end surfaces of the guide blocks 91 are inclined; a groove is formed between the two guide blocks 91, a communicating groove 92 communicated with the groove is formed in each guide block 91, and the communicating groove 92 is connected with the circulating water pipe 101; a plurality of transverse partition plates 94 are further arranged in the sedimentation water tank 9, the transverse partition plates 94 are alternately arranged on the inner wall of the sedimentation water tank 9, and a vertical screen 95 is arranged between every two adjacent transverse partition plates 94; the second communication pipe 8 is disposed below the transverse partition 94, and the third communication pipe 10 is disposed above the transverse partition 94.
In summary, in the prior art, the beneficial effects of the utility model are as follows:
through setting up water tank 5 that sieves, purified water tank 7, sediment water tank 9, utilize vertical filter screen 53, the subassembly 55 that sieves filters sewage, the stirring is collected subassembly 73 and is mixed sewage and reaction medicament, sediment natural settling and vertical screen cloth 95 sieve in the sediment water tank 9, can remove the floater in the sewage, the precipitate, improve device's purification efficiency, and simultaneously, the leading-in water tank 5 that sieves of sewage that will have the precipitate through circulating pipe 101, realize the zero release of sewage.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a waste pyrolysis treatment sewage purification device of the present invention;
FIG. 2 is a schematic view of the overall structure of a water tank for sieving in a waste pyrolysis treatment sewage purification device according to the present invention;
FIG. 3 is a schematic view of an overall structure of a purification water tank in the waste pyrolysis treatment sewage purification apparatus according to the present invention;
FIG. 4 is a top cross-sectional view of a collecting frame of a garbage pyrolytic processing sewage purification apparatus according to the present invention;
FIG. 5 is a schematic top view of a collecting frame cover of a garbage pyrolytic processing sewage purification apparatus according to the present invention;
FIG. 6 is a schematic view of the overall structure of a settling tank in the waste pyrolysis treatment sewage purification apparatus according to the present invention;
in the figure: 1-a garbage pyrolysis furnace; 2-a flue gas purification system; 3-a sewage collecting branch pipe; 4-a sewage collecting pipe; 5-sieving the water tank; 52-vertical partition; 53-vertical screens; 54-a venting assembly; 541-an exhaust pipe; 542-a fan; 543-an activated carbon mesh; 55-a screening assembly; 551-isolating net; 552-fine stone filter layer; 553-Sand filtration layer; 554-fine sand filtration layer; 555-a binding net; 6-a first communicating pipe; 7-purifying the water tank; 71-a box body; 72-case lid; 73-a stirring collection assembly; 731-collecting the screen frame; 7311-a rotating shaft; 7312-transverse stiffener; 7313-vertical stiffeners; 7314-upper screen; 7315-lower screen; 7316-a collection chamber; 7317-connecting rods; 732-a collection bezel; 7321-connecting the cover; 7322-chamber cover; 74-screw; 75-a water quality detection rod; 76-a knob; 8-a second communicating pipe; 9-a settling water tank; 91-a guide block; 92-a communication groove; 94-transverse partitions; 95-vertical screens; 10-a third communicating pipe; 101-circulating water pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A waste pyrolysis treatment sewage purification apparatus according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 6.
In an embodiment, the present invention provides a waste pyrolysis treatment sewage purification apparatus, including: the system comprises a garbage pyrolysis furnace 1, a flue gas purification system 2, a sieving water tank 5, a purification water tank 7 and a precipitation water tank 9; the top of the garbage pyrolysis furnace 1 is provided with a flue gas collecting device which is connected with a flue gas purifying system 2; the bottom of the flue gas purification system 2 is provided with a sewage collecting branch pipe 3, the sewage collecting branch pipe 3 is connected with a sewage collecting pipe 4, the sewage collecting pipe 4 is connected with a sieving water tank 5, the sieving water tank 5 is provided with a first communicating pipe 6 communicated with a purification water tank 7, the first communicating pipe 6 is provided with a water pump, the purification water tank 7 is provided with a second communicating pipe 8 connected with a precipitation water tank 9, the second communicating pipe 8 is provided with a water pump, the precipitation water tank 9 is provided with a third communicating pipe 10 connected with the flue gas purification system 2 and a circulating water pipe 101 communicated with the sieving water tank 5, and the third communicating pipe 10 and the circulating water pipe 101 are both provided with water pumps; after sewage was handled through water tank 5, purified water tank 7, the sediment water tank 9 that sieves, accessible third communicating pipe 10 gets into gas cleaning system 2 in the cycle use, and the sewage of the inside sediment of sediment water tank 9, accessible circulating pipe 101 are leading-in to sieve in the water tank 5, sieve the purification again, realize the zero release of sewage.
The sieving water tank 5 comprises a vertical partition plate 52, the vertical partition plate 52 is arranged inside the sieving water tank 5, the vertical partition plate 52 divides the inner cavity of the sieving water tank 5 into a left cavity and a right cavity, and the two cavities are communicated through a through groove formed in the bottom of the vertical partition plate 52; in the two cavities, the cavity close to the left is communicated with a sewage collecting pipe 4, a vertical filter screen 53 is arranged in the cavity, the cavity close to the right is communicated with a first communicating pipe 6, and a sieving assembly 55 is arranged in the cavity; the first communicating pipe 6 and the sewage collecting pipe 4 are arranged at the upper part of the sieving water tank 5, the first communicating pipe 6 is arranged above the sieving assembly 55, and the through groove is arranged below the sieving assembly 55; vertical filter screen 53 connects the inner wall of water tank 5 that sieves, and subassembly 55 that sieves connects vertical baffle 52, the water tank 5 that sieves.
The air exhaust assembly 54 is arranged on the sieving water tank 5, the air exhaust assembly 54 comprises an air exhaust pipe 541, the air exhaust pipe 541 is communicated with the sieving water tank 5, and a fan 542 and an activated carbon net 543 are arranged in the air exhaust pipe 541; the exhaust assembly 54 is provided to exhaust the bad smell in the sewage through the exhaust pipe 541 and to absorb and purify the bad smell through the activated carbon net 543, so as to ensure the cleanness of the exhaust gas and the quality of the surrounding air.
The sieving assembly 55 comprises an isolation net 551, and the isolation net 551 is connected with the side wall of the vertical partition plate 52 and the inner wall of the sieving water tank 5; a fine stone filtering layer 552 is arranged above the isolation net 551, a sand filtering layer 553 is arranged above the fine stone filtering layer 552, a fine sand filtering layer 554 is arranged above the sand filtering layer 553, and a binding net 555 is arranged above the fine sand filtering layer 554; the sewage firstly enters the fine stone filtering layer 552 through the through groove for filtering, then is filtered by the sand filtering layer 553, and finally is filtered by the fine sand filtering layer 554; this setting can effectual the getting rid of the impurity that floats in sewage.
The purified water tank 7 comprises a tank body 71, a tank cover 72 is arranged at the top of the tank body 71, a stirring and collecting assembly 73 is arranged in the tank body 71, a reaction liquid inlet pipe and a screw 74 are arranged on the tank cover 72, a water quality detection rod 75 and a knob 76 are connected to the screw 74, the water quality detection rod 75 is arranged in the purified water tank 7, and the knob 76 is arranged outside the purified water tank 7; the screw 74 is in threaded connection with the box cover 72, the water quality detection rod 75 can detect the water quality of sewage, and the screw 74 is matched with the knob 76 to be used, so that the water quality detection rod 75 can be replaced conveniently.
The stirring and collecting assembly 73 comprises a collecting net frame 731 and a collecting frame cover 732, wherein the collecting frame cover 732 is arranged at the bottom of the collecting net frame 731; the collecting screen frame 731 comprises a rotating shaft 7311, the rotating shaft 7311 is driven by a driving member, and the driving member is installed on the top of the box cover 72; a plurality of groups of transverse reinforcing rods 7312 are arranged outside the rotating shaft 7311, and one end of each transverse reinforcing rod 7312 far away from the rotating shaft 7311 is connected with a vertical reinforcing rod 7313; the vertical reinforcing rods 7313 are connected with two groups of transverse reinforcing rods 7312, an upper screen 7314 and a lower screen 7315 are arranged between the transverse reinforcing rods 7312, the transverse reinforcing rods 7312 and the vertical reinforcing rods 7313 are connected to form a collecting chamber 7316, and the collecting chamber 7316 is of a hollow structure.
Wherein the upper screen 7314 is disposed above the lower screen 7315, and the filtering holes of the upper screen 7314 are larger than the filtering holes of the lower screen 7315; the overlooking section of the collecting net frame 731 is of a cross structure; the bottom end of the rotating shaft 7311 is connected with a connecting rod 7317, the connecting rod 7317 is a roller-shaped structure, and the connecting rod 7317 is provided with an external thread structure; the connecting rod 7317 is sized smaller in radius than the rotating shaft 7311.
The collecting frame cover 732 comprises a connecting cover body 7321, an internal thread structure is arranged on the connecting cover body 7321, the connecting cover body 7321 is connected with the connecting rod 7317 in a threaded manner, and the size of the connecting cover body 7321 is matched with that of the rotating shaft 7311; a plurality of chamber cover bodies 7322 are disposed outside the connecting cover body 7321, the cross-sectional shape of the chamber cover bodies 7322 is a cross-shaped structure in plan view, and the size of the chamber cover bodies 7322 is matched with the collecting chamber 7316.
The settling water tank 9 comprises two guide blocks 91, the guide blocks 91 are arranged on the bottom end surface of the interior of the settling water tank 9, and the top end surfaces of the guide blocks 91 are inclined; a groove is formed between the two guide blocks 91, a communicating groove 92 communicated with the groove is formed in each guide block 91, and the communicating groove 92 is connected with the circulating water pipe 101; a plurality of transverse partition plates 94 are further arranged inside the settling water tank 9, the transverse partition plates 94 are alternately arranged on the inner wall of the settling water tank 9, and a vertical screen 95 is arranged between every two adjacent transverse partition plates 94; the second communication pipe 8 is disposed below the transverse partition 94, and the third communication pipe 10 is disposed above the transverse partition 94.
When the vertical filter screen is used, sewage is guided into the sieving water tank 5 through the sewage collecting pipe 4, the vertical filter screen 53 and the sieving assembly 55 are utilized to filter the sewage, and floating objects in the sewage are removed; the sewage is guided into the purified water tank 7 through the first communication pipe 6, and is mixed with the reaction reagent to generate a precipitate by using the stirring and collecting assembly 73, and meanwhile, the precipitate in the purified water tank 7 is collected by the collecting net frame 731 and the collecting frame cover 732 during the stirring process; the sewage is then led into a settling water tank 9 through a second communicating pipe 8, and precipitates in the sewage are removed through natural settling and sieving through a vertical screen 95; and finally, the purified sewage enters the flue gas purification system 2 through a third communicating pipe 10 for recycling, the sludge precipitated in the precipitation water tank 9 is led into the sieving water tank 5 through a circulating water pipe 101 for purification treatment again, and zero discharge of the sewage is realized.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.
Claims (8)
1. The utility model provides a rubbish pyrolysis treatment effluent treatment plant which characterized in that: the method comprises the following steps: the device comprises a garbage pyrolysis furnace (1), a flue gas purification system (2), a sieving water tank (5), a purification water tank (7) and a precipitation water tank (9); the water tank (5) comprises a vertical partition plate (52), a through groove is formed in the vertical partition plate (52), the vertical partition plate (52) is arranged inside the water tank (5) and divides the inner cavity of the water tank (5) into two cavities, and a vertical filter screen (53) and a sieving assembly (55) are respectively arranged inside the two cavities; the purified water tank (7) comprises a tank body (71), a tank cover (72) is arranged at the top of the tank body (71), and a stirring and collecting assembly (73) is arranged in the tank body (71); the stirring and collecting component (73) comprises a collecting net frame (731) and a collecting frame cover (732), wherein the collecting frame cover (732) is arranged at the bottom of the collecting net frame (731); the collecting net frame (731) comprises a rotating shaft (7311), a plurality of groups of transverse reinforcing rods (7312) are arranged on the rotating shaft (7311), and vertical reinforcing rods (7313) are connected to the transverse reinforcing rods (7312); the collecting frame cover (732) comprises a connecting cover body (7321), a plurality of cavity cover bodies (7322) are arranged on the connecting cover body (7321), and the overlooking sections of the cavity cover bodies (7322) are of a cross structure.
2. The waste pyrolysis treatment sewage purification device of claim 1, wherein: a first communicating pipe (6) communicated with the purified water tank (7) is arranged on the sieving water tank (5), and a water pump is arranged on the first communicating pipe (6); a second communicating pipe (8) connected with a settling water tank (9) is arranged on the purifying water tank (7), and a water pump is arranged on the second communicating pipe (8); and a third communicating pipe (10) for connecting the flue gas purification system (2) and a circulating water pipe (101) for communicating the sieving water tank (5) are arranged on the settling water tank (9), and water pumps are arranged on the third communicating pipe (10) and the circulating water pipe (101).
3. The waste pyrolysis treatment sewage purification device of claim 1, wherein: be equipped with on water tank (5) of sieving and exhaust subassembly (54), exhaust subassembly (54) includes blast pipe (541), and water tank (5) of sieving is crossed in blast pipe (541) intercommunication, is equipped with fan (542) and activated carbon net (543) on blast pipe (541).
4. The waste pyrolysis treatment sewage purification device of claim 1, wherein: the sieving assembly (55) comprises an isolation net (551), and the isolation net (551) is connected with the vertical partition plate (52) and the sieving water tank (5); a fine stone filtering layer (552) is arranged above the isolation net (551), a sand filtering layer (553) is arranged above the fine stone filtering layer (552), a fine sand filtering layer (554) is arranged above the sand filtering layer (553), and a binding net (555) is arranged above the fine sand filtering layer (554).
5. The waste pyrolysis treatment sewage purification device of claim 1, wherein: the water quality detection device is characterized in that a screw rod (74) is arranged on the box cover (72), a water quality detection rod (75) and a knob (76) are connected to the screw rod (74), the screw rod (74) is in threaded connection with the box cover (72), the water quality detection rod (75) is arranged inside the purified water tank (7), and the knob (76) is arranged on the outer side of the purified water tank (7).
6. The waste pyrolysis treatment sewage purification device of claim 1, wherein: an upper layer screen (7314) and a lower layer screen (7315) are arranged between the transverse reinforcing rods (7312); the vertical reinforcing rods (7313) are connected with two groups of transverse reinforcing rods (7312), the transverse reinforcing rods (7312) and the vertical reinforcing rods (7313) are connected to form a collecting chamber (7316), the collecting chamber (7316) is of a hollow structure, and the size of the collecting chamber (7316) is matched with that of the chamber cover body (7322).
7. The waste pyrolysis treatment sewage purification device of claim 6, wherein: the upper layer screen (7314) is arranged above the lower layer screen (7315), and the filtering holes of the upper layer screen (7314) are larger than the filtering holes of the lower layer screen (7315); the overlooking section of the collecting screen frame (731) is of a cross structure; the bottom end of the rotating shaft (7311) is connected with a connecting rod (7317), and the connecting rod (7317) is in threaded connection with a connecting cover body (7321).
8. The waste pyrolysis treatment sewage purification device of claim 1, wherein: the settling water tank (9) comprises a guide block (91), and the top end surface of the guide block (91) is inclined; a communicating groove (92) is formed in the guide block (91), and the communicating groove (92) is connected with the circulating water pipe (101); a plurality of transverse partition plates (94) are arranged on the settling water tank (9), and a vertical screen (95) is arranged between every two adjacent transverse partition plates (94).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122678556.4U CN216360432U (en) | 2021-11-04 | 2021-11-04 | Garbage pyrolysis treatment sewage purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122678556.4U CN216360432U (en) | 2021-11-04 | 2021-11-04 | Garbage pyrolysis treatment sewage purification device |
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| Publication Number | Publication Date |
|---|---|
| CN216360432U true CN216360432U (en) | 2022-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122678556.4U Active CN216360432U (en) | 2021-11-04 | 2021-11-04 | Garbage pyrolysis treatment sewage purification device |
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| Country | Link |
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| CN (1) | CN216360432U (en) |
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2021
- 2021-11-04 CN CN202122678556.4U patent/CN216360432U/en active Active
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